Garmin GTX 33, Installation Manual, Page: 32 / 83

GTX 33 Installation Manual 190-00906-00
Page 3-2 Rev. F
3.2 Wiring Harness Installation
Allow adequate space for installation of cables and connectors. The installer shall supply and fabricate all
cables. All electrical connections to the GTX 33 are made through one 62-pin D-subminiature connector.
Section 4 defines the electrical characteristics of all input and output signals. Required connectors and
associated hardware are supplied with the connector kit.
See Appendix D for examples of interconnect wiring diagrams. Construct the actual harnesses in
accordance with the aircraft manufacturer authorized interconnect standards.
CAUTION
Check wiring connections for errors before inserting the GTX 33 into the rack. Incorrect
wiring could cause internal component damage.
1. Non-Garmin part numbers shown are not maintained by Garmin and consequently are subject to
change without notice.
2. Extracting the 18 AWG contacts requires that the expanded wire barrel be cut off from the contact.
It may also be necessary to push the pin out from the face of the connector when using an extractor
due to the absence of the wire. A new contact must be used when reassembling the connector.
Table 3-1. Pin Contact Part Numbers
Manufacturer
(Note 1)
62 pin D-Subminiature
18-20 AWG 22-28 AWG
Garmin P/N 336-00044-00 336-00021-00
Military P/N N/A M39029/58-360
AMP N/A 204370-02
Positronic N/A MC8522D
ITT Cannon N/A 030-2042-000
Table 3-2. Recommended Crimp Tools
Manufacturer
(Note 1) Hand Crimp-
ing Tool
18-20 AWG 22-28 AWG
Positioner
(Note 3)
Insertion/
Extraction Tool
(Note 2)
Positioner
Insertion/
Extraction
Tool
Military P/N M22520/2-01 N/A M81969/1-04 M22520/2-09 M81969/1-04
Positronic 9507 9502-11 M81969/1-04 9502-3 M81969/1-04
AMP 601966-1 N/A 91067-1 601966-6 91067-1
Daniels AFM8 K774 M81969/1-04 K42 M81969/1-04
Astro 615717 N/A M81969/1-04 615725 M81969/1-04
NOTES